John f



(No Model.)

J. F. SCHULHOFF.

- SAFE.

Patented June 413, 1893.

UNITED STATES PATENT`l OEEICE.

JOHN F. SOHULHOFF, OF NEW BREMEN, OHIO.

SAFE.`

SPECIFICATION forming part of Letters Patent No. 499,257, dated J' une13, 1893.

Application iiled January 17,1893- Serial No. 458,706. (No model.)

and is designed to prevent ingress to the lockmech'anism in the event ofany one of the spindles thereof being forced in or Withdrawn as isordinarily done; and it consists in the peculiar formation of thespindle along its shank so as to render its removal impossible, and, ina locking device for such spindle, whereby it is ixedly held in placeuntil it is desired to remove it from within; and, it also consists inthe weakening of the spindle at a Vpoint close up to the exterior wallof the safe 'rear elevation of the lock case;

so that it must be easily snapped oft atthat place should any violencebe exerted in attempting tol gain access to the safe.

It further consists of other details of improvement all of which will bemore fully herein set forth. A

Referring to the drawings forming a part of this specification, Figure1, represents a Fig. 2, is a vertical longitudinal section on the line.fr-cs of Fig. 3, showing the spindle locking-plates. Fig. 3, is atransverse section on the'line y-y of Fig. 1 showing the spindles andthe enlargements thereon, and Fig. 4 is a detail showing a spindle fromwhich the knob or dial plate has been forcibly severed.

In the drawings A, represents the lock case, in which are located thespindles B, and their locking slides.

B', represents the enlarged portions of the spindles which in thisinstance are solid, so as to admit of no play against the inner walls ofthe case, and which have their extremities b, b, reduced as shown, the`outer one of course being for the engagement of the knob or dial plate.

'the spindles to their work,once they are in position. These plates arelocated in chambers F, and are made to tit snugly therein so that theymay be made to move to and from the spindles and engage them through theslots c, and atv their inner ends. The locking plates are tapped at c',and screws d, having washers d', thereon permit of their adjustment bymeans of the slots D, in the rear plate of f the lock case. It will beperceived that each screw d, on being loosened permits the locking plateto move freely in the chamber F, and when vthey are moved laterally sothat the slots straddle the spindles the screws are turned lherne andthus lock the plates against anyv displacement, the spindles ofcoursebeing free to rotate but having no endwise movement because theshoulders bear against the front plate of the case and the lockingplates respectively.

At E, on the spindle will be perceived a ring or depression such as vistermed marking in shop parlance,preparatory to the severing of a bar ofiron. The object of this marking is to so weaken'the spindle at the walllof vthe safe as to render it' easily breakable,

and if any violence is attempted in an effort to force the lockmechanism the spindle will break short off, and thus leave noopportunity for the lock mechanism to be picked or blown as the brokenend of the spindle will be flush with the face of the safe, and theenlargements on the spindles, within the casing will prevent their beingdriven inward. Thus it will be perceived that the spindle cannot bewithdrawn or expelled and would be impossible as the spindle would onlymove with the drill, and it would be too short to grasp.

In Fig. 4, of the drawings I have shown the remainder of the .spindleand it is la'slot e which can only be made bybringing this part to anintense heat and making the depression or slot therein with a coldchisel so that one acquainted with the combination may insert animplement therein and open the safe.

It will be understood that I do not limit myself to a solid integralspindle, as collars thereon or openings therein through which pins arepassed are equivalents of what I have scribed which changes are notthought neces-A sary to detail here.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. A spindle for safe and other locks, having an annular weakenedportion exterior to the face of the safe, and separable at that pointwhen force is applied to the same.

2. A spindle for safe and other looks having a central cylindricalenlargement, a tubular casing inclosing the same, the said shaft havingreduced bearing ends, one of which extends through the outer wall of thesafe, for engaging the knob, the opposite one passing through a rearcasing or pocket, in coinbination with a bifurcated plate located insaid pocket the legs of which sit astride this end of the shaft, andadjusting screws tapped into said plates and extending through slots inthe inner walls of the safe for adjusting and securing said bifurcatedplates in position.

3. In combination, a slotted locking plate, a case in which it slides,clamping screws engaging said locking plate and a fixed case platehaving slots therein through which said screws pass for adjusting andlocking said plate upon a spindle journal.

4. In combination, a spindle having a central longitudinal enlargementand reduced journals, a slotted locking plate for engaging saidjournals, a casing for said locking plate and set screws for lockingsaid plate to thc rear case plate of the lock.

In testimony whereof I aiiix my signature in presence of two witnesses.

JOHN F. SCHULHOFF. Witnesses:

ED. PATTERSON, CHRIST LAUT.

